2008 AUDI S4 sensor

Parking aid173
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
•
Moisten the lens using a commercially available, alcohol-based
glass cleaning agent and clean the lens with a dry cloth ⇒.
•
Use a small brush to remove snow and a de-icer spray to remove
ice ⇒ .
WARNING
•
The parking aid cannot replace the full concentration of the
driver. The driver is always resp onsible for safety during parking
and other manoeuvres.
•
Always keep a close wa tch on the area around the vehicle and
make full use of the rear-view mirrors.
•
Do not allow the camera images in the MMI display to distract
you from watching the traffic.
•
For safety reasons, you should not use the system if the posi-
tion and installati on angle of the camera have been changed, e.g.
in a rear-end collision. Have it checked by a qualified workshop.Caution
•
Please note that low obstacles detected by the system may no
longer be registered by the sensors as the car moves closer, so the
system will not give any further warning. Certain kinds of obstacles
(such as wire fences, chains, thin painted posts or trailer draw bars,
etc.) may not always be detected by the system, so take care not to
damage the vehicle in such cases.
•
Never remove snow and ice from the lens of the reversing
camera using warm or hot water - da nger of cracks appearing on the
lens.
•
Never use abrasive cleaning agents on the lens.
Applies to vehicles: with Audi parking system advancedSwitching on/off
The reversing camera is au tomatically switched on
together with the acoustic signals and graphic display
when you select reverse gear.Switching on
– Switch on the MMI system.
– Engage reverse gear, or
– Press the switch

in the centre console ⇒page 170,
fig. 185. You will hear a brief acknowledgement tone and
the diode in the switch will light up.
Switching off
– Drive forwards faster than 10 km/h, or
– Press the switch

, or
– Switch off the ignition.
Changing display via MMI
– Press the control button for Graphic ⇒ page 174, fig. 192
to show the graphic display on the screen.
– Press the control button for Rear View to display the
picture from the reversing camera.
WARNING
•
Some objects (e.g. narrow posts or bars), recesses in the
ground or protruding parts on other vehicles may not be displayed
in a satisfactory manner or may no t be displayed at all on the MMI
screen.A5
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Parking aid177
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Applies to vehicles: with Audi parking system/plus/advancedSwitching display and acoustic signals on and offThe settings for the graphic display* and acoustic signals
are controlled via the sound system or MMI*.– Select: Function selector button > Audi parking
system .Display*•
off - The parking aid gives only acoustic warning signals when it
is activated.
•
Graphic - The graphic display ap pears when reversing and
driving forwards.
•
Rear View * - The picture from the reversing camera is shown
when reversing and driving forwards.
•
Automatic * - The picture from the reversing camera is shown
when reversing and the graphic display is shown when driving
forwards.
Warning beeps
•
Rear volume - Volume of the rear sensors
•
Rear frequency - Pitch of the rear sensors
•
Front volume* - Volume of the front sensors
•
Front frequency * - Pitch of the front sensors
You will hear a short test tone each time you make a new setting.Note
•
You can also change the warning beep settings directly from the
graphic display* or reversing camera* picture. Simply press the
control button for *.
•
New settings are not activated until you switch on the parking
aid again.
•
The settings will be automatically stored and assigned to the
remote control key.
Applies to vehicles: with Audi parking system/plus/advanced and towing bracketTo w i n g b r a c k e tIn towing mode, the rear parking sensors are NOT activated when
you select reverse gear or press the switch
. This may not apply if
the power socket was NOT factory-fitted. This results in the
following restrictions:
Audi parking system*
There is no distance warning.
Audi parking system plus*
There is no rear distance warning. However, the system will still give
a warning when obstacles are detected while driving forwards. The
proximity graphic will switch over to towing mode.
Audi parking system advanced*
There is no rear distance warning. However, the system will still give
a warning when obstacles are detected while driving forwards. The
proximity graphic will switch over to towing mode. The image of the
Fig. 196 Display:
Settings for parking
aid
CAR
Settings
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Airbag system201
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Airbag systemDescription of airbag systemGeneral notes on airbag system
The airbag is an integral part of the car's passive safety
system.In conjunction with the three-poin t seat belts, the airbag system
gives the front occupants additional protection for the head and
chest in the event of a severe frontal collision.
In a severe side collision the side airbags and the head-protection
airbags reduce the risk of injury to the occupants in the areas of the
body facing the impact ⇒.
In addition to their no rmal function of protecting the occupants in a
collision, the seat belts also hold them in a position where the
airbags can inflate properly and provide maximum protection.
The airbag system will only work with the ignition on. The airbag
system is monitored electronically; the airbag warning lamp indi-
cates whether the system is functioning properly.
The main parts of the airbag system are:•
the electronic monitoring system (control unit and sensors),
•
the two front airbags,
•
the front side airbags, the side ai rbags on the outer rear seats*
and the head-protection airbags,
•
the airbag warning lamp in the instrument cluster.
There is a fault in the airbag system if the warning
lamp
•
does not come on when the ignition is switched on,
•
does not go out about 4 seconds after the ignition is switched
on,
•
goes out and then comes on again after the ignition is switched
on,
•
comes on or flickers while the car is moving.
WARNING
•
The airbags are not a substitute for the seat belts; they are an
integral part of the car's overall passive safety system. The airbags
can only offer effective protection if the occupants are wearing
their seat belts. For this reason it is very important to wear the
seat belts at all times ⇒page 194, “Why is it so important to use
seat belts?”.
•
The seat belts and airbags can only provide maximum protec-
tion if the occupants are seated correctly ⇒page 73, “Seats and
storage”.
•
If you do not wear a seat belt, if you lean forward, or are not
seated correctly while the vehicle is in motion, you are at greater
risk of injury should the airbag system be triggered in an accident.
•
Components of the airbag system are located in various parts
of the vehicle. If repairs to other vehicle components make it
necessary to perform work on the airbag system or to remove or
install parts of the airbag system, this may cause damage to the
airbag system. As a result, the ai rbags may not inflate correctly or
may not be triggered at all in an a ccident situation. For this reason,
you should always have the work carried out by a qualified work-
shop.
•
If a fault should occur in the airbag system, have the system
checked immediately by a qualified workshop. Otherwise the
system may fail to trigger in an accident.
•
Do not attempt to modify compon ents of the airbag system in
any way.
•
Never make any alterations to the front bumper or the body.
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Airbag system
202•
Do not remove the front seats.
•
The airbag system can only be ac tivated once; if the airbag has
been triggered, the system must be replaced. Should the airbag
system or airbag modules have to be replaced, the qualified work-
shop carrying out the replacement will document all details in the
appropriate section of the Service Schedule.
•
If you sell the vehicle, please remember to pass on the
complete Service Wallet to the new owner. If any of the airbags
have been deactivated, it is impo rtant that the new owner is also
given the relevant documents.
•
The relevant safety requirements must be observed when the
vehicle or components of the airbag or belt tensioner systems are
scrapped.
•
In an accident in which one or more airbags are triggered the
alternator and the starter are - for safety reasons - both discon-
nected from the battery via a pyrotechnic circuit breaker.
−Any repairs to the pyrotechnic circuit breaker must always
be performed by a qualified workshop (accident risk).
− The relevant safety requirements must be observed when
the vehicle or the circ uit breaker are scrapped.
When are the airbags triggered?
The airbag system is triggere d in collisions with a severe
impact.The airbag system is designed so that the airbags for the driver and
front passenger are triggered in a severe frontal collision.
In severe side collisions the side airbags on the impact side of the
vehicle are triggered together with the head-protection airbag.
The front airbags, side airbags and one of the head-protection
airbags may be triggered together in certain types of accident. The airbag system is
not triggered in minor frontal or side collisions,
or in rear collisions or if the car overturns. In these situations the
occupants are protected by wearing the seat belts.
Factors determining the triggering response
It is not possible to define the exact triggering response of the
airbag system in all possible situat ions, since the circumstances in
different types of accident will va ry considerably. Important factors
include, for example, the nature (hard or soft) of the object which
the car hits, the angle of impact, vehicle speed and so on.
Whether the airbags are triggered depends primarily on the vehicle
deceleration rate resulting from the collision. By processing the
signals from the sensors located in the vehicle, the electronic
control unit is immediately able to evaluate the severity of the colli-
sion and activate the restraint systems accordingly. If the decelera-
tion rate is below the predefined reference value in the control unit
the airbags will not be triggered, even though the accident may
cause extensive damage to the car.
Note
The airbag releases a fine dust when it inflates. This is quite normal
and does not mean there is a fire in the vehicle.
WARNING (continued)
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Airbag system
206Important safety notes on the side airbag system
There are a number of safety points concerning the airbag
system which you should remember. This will help to
reduce the risk of injury in an accident.
WARNING
•
If you do not wear a seat belt, if you lean forward, or are not
seated correctly while th e vehicle is in motion, you are at greater
risk of injury should the side airbags on the front seats or the outer
rear seats* be triggered in an accident. This applies particularly to
children if they are not properly protected by a child restraint
system ⇒page 212, “Important notes on side airbags and child
safety”.
•
If children are not seated correctly, they are at greater risk of
injury in an accident. This is particularly the case if the child is
travelling on the front passenger's seat and the airbag system is
triggered. This could result in serious or potentially fatal injury
⇒ page 210, “Child safety”.
•
It is also important not to attach any accessories (such as cup
holders) to the doors. This would impair the protection offered by
the side airbags (front and rear*).
•
The sensors for the airbags are lo cated in the front doors. You
must therefore not make any modifications to the doors or door
trim (e.g. retrofitting loudspeakers ), as this could impair the func-
tion of the side airbags. Any dama ge to the front doors could lead
to faults in the system. Repairs or any other work on the front
doors must therefore always be carried out by a qualified work-
shop.
•
The built-in coat hooks should only be used for lightweight
clothing. Do not leave any heavy or sharp-edged objects in the
pockets.
•
Do not apply excessive force to the sides of the backrests (such
as hard knocks or kicks), as this could damage parts of the system.
The side airbags could then fail to operate when required.
•
If you intend to fit protective covers over the seats, these must
be of the specific type approved for use on Audi seats with side
airbags. Conventional seat covers would obstruct the side airbag
when it inflates out of the ba ckrest, and seriously reduce the
airbag's ef fectiveness.
•
Any damage to the original seat upholstery or around the
seams of the side airbag units must be repaired immediately by a
qualified workshop.
•
Any work involving the side airbag system or removal and
installation of the airbag components for other repairs (such as
repairs to the seats) must always be performed by a qualified
workshop. Otherwise the airbag system may fail to work
properly.WARNING (continued)
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Airbag system
208second). The airbag releases a fine dust when it inflates. This is quite
normal and does not mean there is a fire in the vehicle.Important safety notes on the head-protection airbags
There are a number of safety points concerning the airbag
system which you should remember. This will help to
reduce the risk of injury in an accident.
WARNING
•
It is important to ensure that the area around the openings for
the head-protection airbags remains unobstructed at all times, so
that the airbags can in flate properly if needed.
•
The built-in coat hooks should only be used for lightweight
clothing. Do not leave any heavy or sharp-edged objects in the
pockets. When using the coat hooks, do not hang the clothes on
coat hangers.
•
The space between the passenge rs and the head-protection
airbags must never be occupied by children, other passengers or
pets. Passengers should never lean out or put a hand or arm out of
the window while the vehicle is in motion.
•
Do not move the sun visors out to cover the side windows if
there is anything attached to th em (such as pens or a remote
control for the garage door). These objects could cause injury if the
head-protection airbag is triggered.
•
The sensors for the airbags are lo cated in the front doors. You
must therefore not make any modifications to the doors or door
trim (e.g. retrofitting loudspeakers ), as this could impair the func-
tion of the side airbags. Any dama ge to the front doors could lead
to faults in the system. Repairs or any other work on the front
doors must therefore always be carried out by a qualified work-
shop.
•
Where sun blinds are fitted on th e rear doors, these must not
obstruct or impair th e airbags in any way.
•
If unsuitable accessories are installed near the head-protection
airbag, the protection afforded by the airbag can be seriously
impaired if the system is trigge red. When the head-protection
airbag opens, parts of these acce ssories could be thrown into the
vehicle and injure passengers ⇒page 277 .
•
Any work involving the head-protection airbags, or removal
and installation of the airbag components for other repairs (such
as repairs to the roof liner), mu st always be performed by a quali-
fied workshop. Otherwise the airbag system may fail to work
properly.
Applies to vehicles: with key-operated switch for front passenger's airbagDeactivating the front passenger's airbag via the key-operated switchIf an airbag has been deactivated, it should be reactivated
as soon as possible so that it can continue to give the
required protection.
WARNING (continued)
Fig. 222 Key-operated
switch in glove box for
deactivating front
passenger's airbag
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Intelligent technology227
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
current even when the ignition is off. In some cases there may not
be enough power available to start the engine.
Your vehicle is equipped with an intelligent power management
system to control the distribution of electrical energy. This signifi-
cantly improves reliability when starting the engine, and also
prolongs the life of the battery.
The main functions incorporated in the power management system
are
battery diagnosis , residual current management and dynamic
power management .
Battery diagnosis
The battery diagnosis function constantly registers the condition of
the battery. Sensors detect the ba ttery voltage, battery current and
battery temperature. This enables the system to calculate the
current power level and charge condition of the battery.
Residual current management
The residual current management reduces power consumption
while the vehicle is parked. It controls the supply of power to the
various electrical components while the ignition is switched off. The
system takes the battery diagnosis data into consideration.
Depending on the power level of the battery, the individual electrical
components are switched off one after the other to prevent the
battery from losing too much charge and to ensure that the engine
can be started reliably.
Dynamic power management
While the vehicle is moving, this function distributes the available
power to the various electrical components and systems according
to their requirements. The power management ensures that on-
board systems do not consume more electrical power than the
alternator can supply, and thus maintains the maximum possible
battery power level.
Note
•
The power management system is not able to overcome the
given physical limits. Please remember that the power and life of
the battery are limited.
•
A warning message will appear ⇒page 228, “Driver message in
the instrument cluster display” if the battery power has dropped to
a level where reliable starting is impaired.
Points to remember
Starting ability has first priority.Short trips, city traffic and low te mperatures all place a heavy load
on the battery. In these conditions a large amount of power is
consumed, but only a small amount is supplied. The situation is also
critical if electrical equipment is in use when the engine is not
running. In this case power is consumed when none is being gener-
ated.
In these situations you will be aware that the power management
system is intervening to control the distribution of electrical power.
When the vehicle is parked for long periods
If you do not drive your vehicle for a period of several days or weeks,
the power management will gr adually shut off the on-board
systems one by one, or reduce the amount of current they are using.
This limits the amount of power consumed and helps to ensure reli-
able starting even after a long period.
Please note that certain convenience features, such as the Audi
advanced key*, the remote control key or the electrical seat adjust-
ment may not be available when yo u unlock the vehicle. These func-
tions will be restored when you switch on the ignition and start the
engine.
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Fuses and bulbs301
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
The seats with electrical adjustment are protected by circuit
breakers
. These reset automatically after a few seconds when the
overload has been corrected.
Fuse list
Fuse list Fuse list
No.
Electrical equipment
amps
Fuse carrier (black)
1
Dynamic steering
5
2
Clutch sensor
5
3
Garage door opener
5
4
Audi lane assist
10
5
Air conditioner
5
6
Headlight range control (right)
5
7
Headlight range control (left)
5
8
Control unit 1 for vehicle's electrical system
5
9
Interior mirrors
5
10
Selector gate
5
11
Heated washer jets
5
12
Air conditioner
5
No.
Electrical equipment
amps
Fuse carrier (brown)
1
Vacant
2
Clutch sensor
5
3
Fuel pump (diesel/petrol)
20/25
4
Auxiliary water pump (3.2 FSI)
5
5
Seat heating (left-side) with/without seat venti-
lation
30
6
Electronic stab
ilisation program
10
7
Horn
25
8
Electric window motor (left door)
30
9
Wiper motor
30
10
Electronic stabilisation program
25
11
Door control unit (driver's side)
15
12
Rain and light sensor
5
No.
Electrical equipment
amps
Fuse carrier (red)
1
Vacant
2
Vacant
3
Lumbar support
10
4
Dynamic steering
35
5
Interior light
5
6
Control unit 1 for vehicle's electrical system
35
7
Control unit 1 for vehicle's electrical system
30
8
Control unit 1 for vehicle's electrical system
30
9
Tilting panorama roof/sun roof
20
10
Control unit 1 for vehicle's electrical system
30
11
Vacant
12
Convenience electronics
5
No.
Electrical equipment
amps
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